ftrace: Synchronize the initialization of ftrace_opsgrafted

There's some internal state that ftrace_ops needs to have set, but since
it can be declared outside of the ftrace.c code, it calls
ftrace_ops_init() on the ops in every global function. The issue is that
if two tasks call it on the same ops at the same time it is possible to
have the initialization of one corrupt the initialization of the other
call.

Create a ops_mutex to use to synchronize every initialization of the
ftrace_ops. The mutex is taken within checking the ftrace_ops flag that
states it was initializied but the flag is checked again after the mutex
has been taken. Checking first outside the mutex allows it to shortcut
having to take the mutex. But then the check needs to be done again after
the mute is taken in case of races.

Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/20260902095501.6b59af20@gandalf.local.home
Fixes: f04f24fb7e48d ("ftrace, kprobes: Fix a deadlock on ftrace_regex_lock")
Reported-by: sashiko-bot@kernel.org
Close: https://lore.kernel.org/all/20260829025528.49A831F000E9@smtp.kernel.org/
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

1 files changed, 248 insertions, 0 deletions

diff --git a/drivers/accessibility/speakup/i18n.h b/drivers/accessibility/speakup/i18n.h
new file mode 100644
index 000000000..51e326099
--- /dev/null
+++ b/drivers/accessibility/speakup/i18n.h
@@ -0,0 +1,248 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef I18N_H
+#define I18N_H
+/* Internationalization declarations */
+
+enum msg_index_t {
+	MSG_FIRST_INDEX,
+	MSG_ANNOUNCEMENTS_START = MSG_FIRST_INDEX,
+	MSG_BLANK = MSG_ANNOUNCEMENTS_START,
+	MSG_IAM_ALIVE,
+	MSG_YOU_KILLED_SPEAKUP,
+	MSG_HEY_THATS_BETTER,
+	MSG_YOU_TURNED_ME_OFF,
+	MSG_PARKED,
+	MSG_UNPARKED,
+	MSG_MARK,
+	MSG_CUT,
+	MSG_MARK_CLEARED,
+	MSG_PASTE,
+	MSG_BRIGHT,
+	MSG_ON_BLINKING,
+	MSG_STATUS_START,
+	MSG_OFF = MSG_STATUS_START,
+	MSG_ON,
+	MSG_NO_WINDOW,
+
+	/* These must be ordered the same as enum cursor_track */
+	MSG_CURSOR_MSGS_START,
+	MSG_CURSORING_OFF = MSG_CURSOR_MSGS_START,
+	MSG_CURSORING_ON,
+	MSG_HIGHLIGHT_TRACKING,
+	MSG_READ_WINDOW,
+	MSG_READ_ALL,
+
+	MSG_EDIT_DONE,
+	MSG_WINDOW_ALREADY_SET,
+	MSG_END_BEFORE_START,
+	MSG_WINDOW_CLEARED,
+	MSG_WINDOW_SILENCED,
+	MSG_WINDOW_SILENCE_DISABLED,
+	MSG_ERROR,
+	MSG_GOTO_CANCELED,
+	MSG_GOTO,
+	MSG_LEAVING_HELP,
+	MSG_IS_UNASSIGNED,
+	MSG_HELP_INFO,
+
+	/* These must be ordered the same as enum edge */
+	MSG_EDGE_MSGS_START,
+	MSG_EDGE_TOP  = MSG_EDGE_MSGS_START,
+	MSG_EDGE_BOTTOM,
+	MSG_EDGE_LEFT,
+	MSG_EDGE_RIGHT,
+
+	MSG_NUMBER,
+	MSG_SPACE,
+	MSG_START, /* A little confusing, given our convention. */
+	MSG_END, /* A little confusing, given our convention. */
+	MSG_CTRL,
+
+/* A message containing the single word "or". */
+	MSG_DISJUNCTION,
+	MSG_ANNOUNCEMENTS_END = MSG_DISJUNCTION,
+
+/* Messages with format specifiers. */
+	MSG_FORMATTED_START,
+	MSG_POS_INFO = MSG_FORMATTED_START,
+	MSG_CHAR_INFO,
+	MSG_REPEAT_DESC,
+	MSG_REPEAT_DESC2,
+	MSG_WINDOW_LINE,
+	MSG_WINDOW_BOUNDARY,
+	MSG_EDIT_PROMPT,
+	MSG_NO_COMMAND,
+	MSG_KEYDESC,
+	MSG_FORMATTED_END = MSG_KEYDESC,
+
+	/* Control keys. */
+	MSG_CTL_START,
+	MSG_CTL_SHIFT = MSG_CTL_START,
+	MSG_CTL_ALTGR,
+	MSG_CTL_CONTROL,
+	MSG_CTL_ALT,
+	MSG_CTL_LSHIFT,
+	MSG_CTL_SPEAKUP,
+	MSG_CTL_LCONTROL,
+	MSG_CTL_RCONTROL,
+	MSG_CTL_CAPSSHIFT,
+	MSG_CTL_END = MSG_CTL_CAPSSHIFT,
+
+	/* Colors. */
+	MSG_COLORS_START,
+	MSG_COLOR_BLACK = MSG_COLORS_START,
+	MSG_COLOR_BLUE,
+	MSG_COLOR_GREEN,
+	MSG_COLOR_CYAN,
+	MSG_COLOR_RED,
+	MSG_COLOR_MAGENTA,
+	MSG_COLOR_YELLOW,
+	MSG_COLOR_WHITE,
+	MSG_COLOR_GREY,
+	MSG_COLOR_BRIGHTBLUE,
+	MSG_COLOR_BRIGHTGREEN,
+	MSG_COLOR_BRIGHTCYAN,
+	MSG_COLOR_BRIGHTRED,
+	MSG_COLOR_BRIGHTMAGENTA,
+	MSG_COLOR_BRIGHTYELLOW,
+	MSG_COLOR_BRIGHTWHITE,
+	MSG_COLORS_END = MSG_COLOR_BRIGHTWHITE,
+
+	MSG_STATES_START,
+	MSG_STATE_DOUBLE = MSG_STATES_START,
+	MSG_STATE_SPEAKUP,
+	MSG_STATE_ALT,
+	MSG_STATE_CONTROL,
+	MSG_STATE_ALTGR,
+	MSG_STATE_SHIFT,
+	MSG_STATES_END = MSG_STATE_SHIFT,
+
+	MSG_KEYNAMES_START,
+	MSG_KEYNAME_ESC = MSG_KEYNAMES_START,
+	MSG_KEYNAME_1, MSG_KEYNAME_2, MSG_KEYNAME_3, MSG_KEYNAME_4,
+	MSG_KEYNAME_5, MSG_KEYNAME_6, MSG_KEYNAME_7, MSG_KEYNAME_8,
+	MSG_KEYNAME_9,
+	MSG_KEYNAME_0, MSG_KEYNAME_DASH, MSG_KEYNAME_EQUAL, MSG_KEYNAME_BS,
+	MSG_KEYNAME_TAB,
+	MSG_KEYNAME_Q, MSG_KEYNAME_W, MSG_KEYNAME_E, MSG_KEYNAME_R,
+	MSG_KEYNAME_T, MSG_KEYNAME_Y, MSG_KEYNAME_U, MSG_KEYNAME_I,
+	MSG_KEYNAME_O, MSG_KEYNAME_P,
+	MSG_KEYNAME_LEFTBRACE, MSG_KEYNAME_RIGHTBRACE, MSG_KEYNAME_ENTER,
+	MSG_KEYNAME_LEFTCTRL, MSG_KEYNAME_A,
+	MSG_KEYNAME_S, MSG_KEYNAME_D, MSG_KEYNAME_F, MSG_KEYNAME_G,
+	MSG_KEYNAME_H, MSG_KEYNAME_J, MSG_KEYNAME_K, MSG_KEYNAME_L,
+	MSG_KEYNAME_SEMICOLON,
+	MSG_KEYNAME_SINGLEQUOTE, MSG_KEYNAME_GRAVE,
+	MSG_KEYNAME_LEFTSHFT, MSG_KEYNAME_BACKSLASH, MSG_KEYNAME_Z,
+	MSG_KEYNAME_X, MSG_KEYNAME_C, MSG_KEYNAME_V, MSG_KEYNAME_B,
+	MSG_KEYNAME_N, MSG_KEYNAME_M, MSG_KEYNAME_COMMA, MSG_KEYNAME_DOT,
+	MSG_KEYNAME_SLASH, MSG_KEYNAME_RIGHTSHFT,
+	MSG_KEYNAME_KPSTAR,
+	MSG_KEYNAME_LEFTALT, MSG_KEYNAME_SPACE, MSG_KEYNAME_CAPSLOCK,
+	MSG_KEYNAME_F1, MSG_KEYNAME_F2,
+	MSG_KEYNAME_F3, MSG_KEYNAME_F4, MSG_KEYNAME_F5, MSG_KEYNAME_F6,
+	MSG_KEYNAME_F7,
+	MSG_KEYNAME_F8, MSG_KEYNAME_F9, MSG_KEYNAME_F10, MSG_KEYNAME_NUMLOCK,
+	MSG_KEYNAME_SCROLLLOCK,
+	MSG_KEYNAME_KP7, MSG_KEYNAME_KP8, MSG_KEYNAME_KP9, MSG_KEYNAME_KPMINUS,
+	MSG_KEYNAME_KP4,
+	MSG_KEYNAME_KP5, MSG_KEYNAME_KP6, MSG_KEYNAME_KPPLUS, MSG_KEYNAME_KP1,
+	MSG_KEYNAME_KP2,
+	MSG_KEYNAME_KP3, MSG_KEYNAME_KP0, MSG_KEYNAME_KPDOT, MSG_KEYNAME_103RD,
+	MSG_KEYNAME_F13,
+	MSG_KEYNAME_102ND, MSG_KEYNAME_F11, MSG_KEYNAME_F12, MSG_KEYNAME_F14,
+	MSG_KEYNAME_F15,
+	MSG_KEYNAME_F16, MSG_KEYNAME_F17, MSG_KEYNAME_F18, MSG_KEYNAME_F19,
+	MSG_KEYNAME_F20,
+	MSG_KEYNAME_KPENTER, MSG_KEYNAME_RIGHTCTRL, MSG_KEYNAME_KPSLASH,
+	MSG_KEYNAME_SYSRQ, MSG_KEYNAME_RIGHTALT,
+	MSG_KEYNAME_LF, MSG_KEYNAME_HOME, MSG_KEYNAME_UP, MSG_KEYNAME_PGUP,
+	MSG_KEYNAME_LEFT,
+	MSG_KEYNAME_RIGHT, MSG_KEYNAME_END, MSG_KEYNAME_DOWN, MSG_KEYNAME_PGDN,
+	MSG_KEYNAME_INS,
+	MSG_KEYNAME_DEL, MSG_KEYNAME_MACRO, MSG_KEYNAME_MUTE,
+	MSG_KEYNAME_VOLDOWN, MSG_KEYNAME_VOLUP,
+	MSG_KEYNAME_POWER, MSG_KEYNAME_KPEQUAL, MSG_KEYNAME_KPPLUSDASH,
+	MSG_KEYNAME_PAUSE, MSG_KEYNAME_F21, MSG_KEYNAME_F22, MSG_KEYNAME_F23,
+	MSG_KEYNAME_F24, MSG_KEYNAME_KPCOMMA, MSG_KEYNAME_LEFTMETA,
+	MSG_KEYNAME_RIGHTMETA, MSG_KEYNAME_COMPOSE, MSG_KEYNAME_STOP,
+	MSG_KEYNAME_AGAIN, MSG_KEYNAME_PROPS,
+	MSG_KEYNAME_UNDO, MSG_KEYNAME_FRONT, MSG_KEYNAME_COPY, MSG_KEYNAME_OPEN,
+	MSG_KEYNAME_PASTE,
+	MSG_KEYNAME_FIND, MSG_KEYNAME_CUT, MSG_KEYNAME_HELP, MSG_KEYNAME_MENU,
+	MSG_KEYNAME_CALC,
+	MSG_KEYNAME_SETUP, MSG_KEYNAME_SLEEP, MSG_KEYNAME_WAKEUP,
+	MSG_KEYNAME_FILE, MSG_KEYNAME_SENDFILE,
+	MSG_KEYNAME_DELFILE, MSG_KEYNAME_XFER, MSG_KEYNAME_PROG1,
+	MSG_KEYNAME_PROG2, MSG_KEYNAME_WWW,
+	MSG_KEYNAME_MSDOS, MSG_KEYNAME_COFFEE, MSG_KEYNAME_DIRECTION,
+	MSG_KEYNAME_CYCLEWINDOWS, MSG_KEYNAME_MAIL,
+	MSG_KEYNAME_BOOKMARKS, MSG_KEYNAME_COMPUTER, MSG_KEYNAME_BACK,
+	MSG_KEYNAME_FORWARD, MSG_KEYNAME_CLOSECD,
+	MSG_KEYNAME_EJECTCD, MSG_KEYNAME_EJECTCLOSE, MSG_KEYNAME_NEXTSONG,
+	MSG_KEYNAME_PLAYPAUSE, MSG_KEYNAME_PREVSONG,
+	MSG_KEYNAME_STOPCD, MSG_KEYNAME_RECORD, MSG_KEYNAME_REWIND,
+	MSG_KEYNAME_PHONE, MSG_KEYNAME_ISO,
+	MSG_KEYNAME_CONFIG, MSG_KEYNAME_HOMEPG, MSG_KEYNAME_REFRESH,
+	MSG_KEYNAME_EXIT, MSG_KEYNAME_MOVE,
+	MSG_KEYNAME_EDIT, MSG_KEYNAME_SCROLLUP, MSG_KEYNAME_SCROLLDN,
+	MSG_KEYNAME_KPLEFTPAR, MSG_KEYNAME_KPRIGHTPAR,
+	MSG_KEYNAMES_END = MSG_KEYNAME_KPRIGHTPAR,
+
+	MSG_FUNCNAMES_START,
+	MSG_FUNCNAME_ATTRIB_BLEEP_DEC = MSG_FUNCNAMES_START,
+	MSG_FUNCNAME_ATTRIB_BLEEP_INC,
+	MSG_FUNCNAME_BLEEPS_DEC, MSG_FUNCNAME_BLEEPS_INC,
+	MSG_FUNCNAME_CHAR_FIRST, MSG_FUNCNAME_CHAR_LAST,
+	MSG_FUNCNAME_CHAR_CURRENT, MSG_FUNCNAME_CHAR_HEX_AND_DEC,
+	MSG_FUNCNAME_CHAR_NEXT,
+	MSG_FUNCNAME_CHAR_PHONETIC, MSG_FUNCNAME_CHAR_PREVIOUS,
+	MSG_FUNCNAME_CURSOR_PARK, MSG_FUNCNAME_CUT,
+	MSG_FUNCNAME_EDIT_DELIM, MSG_FUNCNAME_EDIT_EXNUM,
+	MSG_FUNCNAME_EDIT_MOST, MSG_FUNCNAME_EDIT_REPEATS,
+	MSG_FUNCNAME_EDIT_SOME,
+	MSG_FUNCNAME_GOTO, MSG_FUNCNAME_GOTO_BOTTOM, MSG_FUNCNAME_GOTO_LEFT,
+	MSG_FUNCNAME_GOTO_RIGHT, MSG_FUNCNAME_GOTO_TOP, MSG_FUNCNAME_HELP,
+	MSG_FUNCNAME_LINE_SAY_CURRENT, MSG_FUNCNAME_LINE_SAY_NEXT,
+	MSG_FUNCNAME_LINE_SAY_PREVIOUS, MSG_FUNCNAME_LINE_SAY_WITH_INDENT,
+	MSG_FUNCNAME_PASTE, MSG_FUNCNAME_PITCH_DEC, MSG_FUNCNAME_PITCH_INC,
+	MSG_FUNCNAME_PUNC_DEC, MSG_FUNCNAME_PUNC_INC,
+	MSG_FUNCNAME_PUNC_LEVEL_DEC, MSG_FUNCNAME_PUNC_LEVEL_INC,
+	MSG_FUNCNAME_QUIET,
+	MSG_FUNCNAME_RATE_DEC, MSG_FUNCNAME_RATE_INC,
+	MSG_FUNCNAME_READING_PUNC_DEC, MSG_FUNCNAME_READING_PUNC_INC,
+	MSG_FUNCNAME_SAY_ATTRIBUTES,
+	MSG_FUNCNAME_SAY_FROM_LEFT, MSG_FUNCNAME_SAY_FROM_TOP,
+	MSG_FUNCNAME_SAY_POSITION, MSG_FUNCNAME_SAY_SCREEN,
+	MSG_FUNCNAME_SAY_TO_BOTTOM, MSG_FUNCNAME_SAY_TO_RIGHT,
+	MSG_FUNCNAME_SPEAKUP, MSG_FUNCNAME_SPEAKUP_LOCK,
+	MSG_FUNCNAME_SPEAKUP_OFF, MSG_FUNCNAME_SPEECH_KILL,
+	MSG_FUNCNAME_SPELL_DELAY_DEC, MSG_FUNCNAME_SPELL_DELAY_INC,
+	MSG_FUNCNAME_SPELL_WORD, MSG_FUNCNAME_SPELL_WORD_PHONETICALLY,
+	MSG_FUNCNAME_TONE_DEC, MSG_FUNCNAME_TONE_INC,
+	MSG_FUNCNAME_VOICE_DEC, MSG_FUNCNAME_VOICE_INC,
+	MSG_FUNCNAME_VOLUME_DEC, MSG_FUNCNAME_VOLUME_INC,
+	MSG_FUNCNAME_WINDOW_CLEAR, MSG_FUNCNAME_WINDOW_SAY,
+	MSG_FUNCNAME_WINDOW_SET, MSG_FUNCNAME_WINDOW_SILENCE,
+	MSG_FUNCNAME_WORD_SAY_CURRENT, MSG_FUNCNAME_WORD_SAY_NEXT,
+	MSG_FUNCNAME_WORD_SAY_PREVIOUS,
+	MSG_FUNCNAMES_END = MSG_FUNCNAME_WORD_SAY_PREVIOUS,
+
+	/* all valid indices must be above this */
+	MSG_LAST_INDEX
+};
+
+struct msg_group_t {
+	char *name;
+	enum msg_index_t start;
+	enum msg_index_t end;
+};
+
+char *spk_msg_get(enum msg_index_t index);
+ssize_t spk_msg_set(enum msg_index_t index, char *text, size_t length);
+struct msg_group_t *spk_find_msg_group(const char *group_name);
+void spk_reset_msg_group(struct msg_group_t *group);
+void spk_initialize_msgs(void);
+void spk_free_user_msgs(void);
+
+#endif